Wall jump to the first platform then spark while standing, or spark from the right door - one tile lower than the Grapple blocks.

Requires:

{
  "useFlashSuit": {}
}
{
  "or": [
    {
      "shinespark": {
        "frames": 121,
        "excessFrames": 4
      }
    },
    {
      "and": [
        "canPreciseWalljump",
        {
          "shinespark": {
            "frames": 110,
            "excessFrames": 4
          }
        }
      ]
    }
  ]
}

Dev note: FIXME: Adding another node at the first platform would allow for cross room strats from the bottom right door.